Mehet-Weret

Mehet-Weret or Mehturt is an ancient Egyptian deity of the sky in ancient Egyptian religion. Her name means "Great Flood".
She was mentioned in the Pyramid Texts. In ancient Egyptian creation myths, she gives birth to the sun at the beginning of time, and in art she is portrayed as a cow with a sun disk between her horns. She is associated with the goddesses Neith, Hathor, and Isis, all of whom have similar characteristics, and like them she could be called the "Eye of Ra".
Mehet-Weret is primarily known as being the "Celestial Cow" or "Cow Goddess" because of her physical characteristics, but she contributes to the world in more ways than that. She is also a goddess of water, creation, and rebirth; in Egyptian mythology, Mehet-Weret is one of the main components in the making and survival of life.
Origin
Mehet-Weret was responsible for raising the sun into the sky every day. She produced the light for the crops of those who worshipped her, and she also caused the annual Nile River flood that fertilized the crops with water. In Patricia Monaghan's The Encyclopedia of Goddesses and Heroines, she describes Mehet-Weret as the goddess of creation because she gives birth to the sun every day, creating life for all those who worship her.
In Egyptian mythology, Mehet-Weret was known as a goddess of water and creation, but Geraldine Pinch also introduces the idea that she was a piece of the nighttime sky. She is referenced as being the river of stars known as the Milky Way, because of her physical traits of being the responsible for the annual flood of the Nile River.
Birthing Ra
Mehet-Weret is described as being the mother of Ra, the ancient Egyptian solar deity. As a creation goddess, she gives birth to the sun every day and is the reason the world isn't in the dark. In her physical description, she is described as having a sun disk between her horns; in typical motherly fashion, she protects her son Ra and keeps him close to her.
Physical description
Mehet-Weret is described as having a woman's body with a cow's head, and as such, is sometimes called the Cow Goddess. A sun disk lies between the horns on her head, which connects her to the creation of the sun.
Sarcophagus of Khonsu
Mehet-Weret is featured on the sarcophagus of Khonsu, son of Sennedjem, who was buried in tomb TT1. The hieroglyphs painted on the outside of the sarcophagus are yet another way to protect the deceased; they are used to paint a journey to the afterlife for the deceased. Mehet-Weret is depicted dressed in a number of ritual items as a way to denote her divine standing. The picture features Khonsu bowing and adoring her; this was meant as a way to signify her importance as a divine being.
Death and afterlife
The goddess Mehet-Weret was featured in a number of spells in the Book of the Dead, including spell 17. In this spell she was credited for the birth of Re, and she is also the one who protects Re, because it was believed by the ancient people of Egypt that the sun died every day and was reborn by Mehet-Weret. She was responsible for taking him into the underworld, or night because of the darkness, and then bringing him back to the world the next day, almost as if in the afterlife. The people of Egypt believed that Mehet-Weret was a goddess of creation and rebirth, so she was featured in one of the spells to help the humans make their way into the afterlife. The Book of the Dead is an important text in the Egyptian culture because it allows the audience to understand the different journeys that the ancient Egyptians believed in to get to the afterlife.
References
Egyptian goddesses
Sky and weather goddesses
Horned goddesses
Cattle deities